How to Control the Humidity in Your Bedroom

and bacteria can breed in dirty water reservoirs, consider using distilled water, change the water in your humidifier often, and clean the apparatus every three days to protect yourself.

The Perfect Balance

So what’s the sweet spot for sleep-enhancing humidity? Between 30 and 50 percent is the ideal range in which the air is moist enough for easy breathing, but dry enough to not feel oppressive. To keep track of the relative humidity in your bedroom, purchase a device called a hygrometer sold at hardware stores and department stores (also built in to some humidifiers).